Author: gropp Date: 2012-12-07 10:18:51 -0600 (Fri, 07 Dec 2012) New Revision: 10711 Modified: mpich2/trunk/test/mpi/configure.ac Log: Added info about the -qfree=f90 option for xlf Modified: mpich2/trunk/test/mpi/configure.ac =================================================================== --- mpich2/trunk/test/mpi/configure.ac 2012-12-06 17:10:21 UTC (rev 10710) +++ mpich2/trunk/test/mpi/configure.ac 2012-12-07 16:18:51 UTC (rev 10711) @@ -984,6 +984,12 @@ # The Fortran90 tests rely on free-form input which needs to be tested # before any test that may modify FCFLAGS, e.g. the cray-pointer test. # The order of the tests is important in compiler like g95. + # Recent experience showed that the IBM xlf compiler, at least on + # some systems, requires -qfree=f90 instead of -qfree . At this + # writing (11/27/12), this Autoconf macro still uses -qfree and has + # no mechanism for extension. This test may fail in that case; if + # you encounter a problem, document it and submit it to the autoconf + # bug list, not the MPICH bug list. AC_FC_FREEFORM # See if the compiler supports the Cray-style pointers